Effects of Naoxinduotai capsule on Markers of prothrombotic state in patients with essential hypertension Effects of the Combinatiop of Astragalus membranaceus (Flsch.)Bge.(AM),Tail of Angelica sifiensiS(OIiv. )Diels(TAS),cyperus rotundus L.(CR) ,Ligusticum chuangxiong Hort.(LC) and Peaonia veitchii lynch (PV)on.the Hemorrheological Changes in “Blood